Think about it this way. If you have something that people would normally pay for before they buy. It is the same with watchmybit.com. It is no difference from any other market place like Amazon Kindle, etc and they have a video preview so users can see a little bit of interesting stuff before paying. The only benefit I see here is that people will pay in bitcoins and you know the advantage of bitcoins. 1. You receive you payout instantly and directly to you bitcoin wallet, no $100 payout like youtube, 2. Anybody from any part of the world can create content and earn with no restrictions like countries not supported by paypal, and no stress of going through google adsense rules and hassle, no youtube guideline strike, stuffs like that. 3. Bitcoin price can go up and that means your money earned from the content can be double of what you set as price per view.